
York S1-025-49273-000 Heater
The York S1-025-49273-000 Crankcase Heater is a heavy-duty compressor band heater engineered specifically for high-voltage industrial HVAC systems. Operating at 460V and delivering a steady 40W output, this 50-inch heater band is essential for maintaining optimal oil viscosity in large-frame compressors during the off-cycle. By keeping the crankcase temperature above the refrigerant saturation point, it effectively eliminates refrigerant migration and prevents liquid slugging—the primary cause of catastrophic compressor bearing failure during cold starts. This OEM York replacement part features a flexible, corrosion-resistant design that ensures maximum heat transfer across the compressor housing. For industrial maintenance teams, installing this 460V crankcase heater is a standard preventative measure to ensure smooth motor startup and long-term system reliability in low-ambient conditions. Its 50-inch length provides the necessary coverage for vertical and scroll compressors, ensuring uniform heat distribution without localized hotspots.
Key Benefits- Prevents Liquid Slugging: Maintains oil temperature to prevent refrigerant from condensing in the crankcase, protecting domestic and commercial compressors from mechanical stress.
- Optimized Heat Transfer: The 50-inch band wraps securely around the compressor base, ensuring efficient thermal conductivity to the oil reservoir.
- Heavy-Duty Industrial Rating: Purpose-built for 460V electrical configurations typically found in large-scale rooftop units and industrial chillers.
- System Protection: Reduces the high-torque demand of cold starts, preserving the integrity of internal scroll and reciprocating components.
How do I verify the correct fit for this heater?
This 50-inch crankcase band heater is designed to fit compressors with a circumference up to 50 inches. Always measure the diameter of your compressor shell to ensure the band provides full contact for proper heat conduction.
Does this heater run while the compressor is operating?
No. In a standard HVAC control circuit, the S1-025-49273-000 is interlocked with the compressor contactor so it remains energized only during the off-cycle when the compressor is stationary.
Can I use this 460V heater on a 230V system?
No. This component is rated strictly for 460V. Using it on a lower voltage system will significantly reduce the wattage output (BTU), failing to provide sufficient heat to prevent refrigerant migration.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $116.29
-65%$116.29
$40.70York S1-025-49273-000 Heater
The York S1-025-49273-000 Crankcase Heater is a heavy-duty compressor band heater engineered specifically for high-voltage industrial HVAC systems. Operating at 460V and delivering a steady 40W output, this 50-inch heater band is essential for maintaining optimal oil viscosity in large-frame compressors during the off-cycle. By keeping the crankcase temperature above the refrigerant saturation point, it effectively eliminates refrigerant migration and prevents liquid slugging—the primary cause of catastrophic compressor bearing failure during cold starts. This OEM York replacement part features a flexible, corrosion-resistant design that ensures maximum heat transfer across the compressor housing. For industrial maintenance teams, installing this 460V crankcase heater is a standard preventative measure to ensure smooth motor startup and long-term system reliability in low-ambient conditions. Its 50-inch length provides the necessary coverage for vertical and scroll compressors, ensuring uniform heat distribution without localized hotspots.
Key Benefits- Prevents Liquid Slugging: Maintains oil temperature to prevent refrigerant from condensing in the crankcase, protecting domestic and commercial compressors from mechanical stress.
- Optimized Heat Transfer: The 50-inch band wraps securely around the compressor base, ensuring efficient thermal conductivity to the oil reservoir.
- Heavy-Duty Industrial Rating: Purpose-built for 460V electrical configurations typically found in large-scale rooftop units and industrial chillers.
- System Protection: Reduces the high-torque demand of cold starts, preserving the integrity of internal scroll and reciprocating components.
How do I verify the correct fit for this heater?
This 50-inch crankcase band heater is designed to fit compressors with a circumference up to 50 inches. Always measure the diameter of your compressor shell to ensure the band provides full contact for proper heat conduction.
Does this heater run while the compressor is operating?
No. In a standard HVAC control circuit, the S1-025-49273-000 is interlocked with the compressor contactor so it remains energized only during the off-cycle when the compressor is stationary.
Can I use this 460V heater on a 230V system?
No. This component is rated strictly for 460V. Using it on a lower voltage system will significantly reduce the wattage output (BTU), failing to provide sufficient heat to prevent refrigerant migration.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
The York S1-025-49273-000 Crankcase Heater is a heavy-duty compressor band heater engineered specifically for high-voltage industrial HVAC systems. Operating at 460V and delivering a steady 40W output, this 50-inch heater band is essential for maintaining optimal oil viscosity in large-frame compressors during the off-cycle. By keeping the crankcase temperature above the refrigerant saturation point, it effectively eliminates refrigerant migration and prevents liquid slugging—the primary cause of catastrophic compressor bearing failure during cold starts. This OEM York replacement part features a flexible, corrosion-resistant design that ensures maximum heat transfer across the compressor housing. For industrial maintenance teams, installing this 460V crankcase heater is a standard preventative measure to ensure smooth motor startup and long-term system reliability in low-ambient conditions. Its 50-inch length provides the necessary coverage for vertical and scroll compressors, ensuring uniform heat distribution without localized hotspots.
Key Benefits- Prevents Liquid Slugging: Maintains oil temperature to prevent refrigerant from condensing in the crankcase, protecting domestic and commercial compressors from mechanical stress.
- Optimized Heat Transfer: The 50-inch band wraps securely around the compressor base, ensuring efficient thermal conductivity to the oil reservoir.
- Heavy-Duty Industrial Rating: Purpose-built for 460V electrical configurations typically found in large-scale rooftop units and industrial chillers.
- System Protection: Reduces the high-torque demand of cold starts, preserving the integrity of internal scroll and reciprocating components.
How do I verify the correct fit for this heater?
This 50-inch crankcase band heater is designed to fit compressors with a circumference up to 50 inches. Always measure the diameter of your compressor shell to ensure the band provides full contact for proper heat conduction.
Does this heater run while the compressor is operating?
No. In a standard HVAC control circuit, the S1-025-49273-000 is interlocked with the compressor contactor so it remains energized only during the off-cycle when the compressor is stationary.
Can I use this 460V heater on a 230V system?
No. This component is rated strictly for 460V. Using it on a lower voltage system will significantly reduce the wattage output (BTU), failing to provide sufficient heat to prevent refrigerant migration.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.












